Hydrocarbon-motor



F. J. DRUAR.

HYDROCARBON MOTOR.

nPPLICATION FILED APR.29| I918.

Patented Jan. 6, 1920.

i. H 'l 1 a 17 M l l .lL i s: 3 I! UNITED STATES PATENT OFFICE.

, FRANK J. Drummer DETROIT, MICHIGAN, ASSIGNOR To PACKARD mo'ron can COMPANY, or DETROIT, MIC IIGAN, A CORPORATION or MICHIGAN.

HYDROCARBON-MOTOR.

a To all whom it may concern.

Be it known that I, "FRANK J DRrIAR, a

citizen of the United States, and resident of Detroit, Wayne county, State of Michigan, have invented -certain new. and useful Improvements in Hydrocarbon-Motors, of

which the following is a specification. v

This invention relates to hydrocarbon motors and particularly to control of the water circulation thereof.

One of theobjects of the invention is to provide a thermostat unit-in whichthe valve mechanism is substantially balanced'relative to' the water pressure.

Another object of the invention is to provide a thermostat valve unit of simple con.- struction for manufacturing purposes.

Another object of the invention is to provide a thermostat valve unit with two ports to one of the main openings so that the pressure of the water against'the'valves maybe substantiallybalanced.

Other objects of the invention will appear from the followinmdescription taken in conn ection withthe drawings which 'form a part of this specification, and in which:

Figure 1 is a side elevation of a hydrocarbon motor embodying this invention; and

Fig. 2- is a horizontal sectional View,

through the thermostat valve unit shown in Fig. 4 t I Referring to the drawings, 10 represents a hydrocarbon motor havingcylinders 11 which are water jacketedas at 12. A radiator 13 is mounted at the front of-the motor and a, fan 14 increases'the circulation ofair' through the radiator A" pump 15,

driven by any suitable movin'g shaft of the motor, draws the water from the lower part, 7 of the radiator 13 through a pipe 16 and de-f livers it by a branched pipe 17 to the motor jacket 12.- Anoutlet pipe 18 from the-top of the jacket carries. the water to the-upper shown as arranged-between the pipe 18 and the radiator 13,and a bypass pipe 20 leads from theunit 19 to the pipe 16.

The construction of the" unit '19 is shown in detail in. Fig. 2. The pipe 18 above referred to connects'to one end ofthemain.

body or casing of the thermostat unit through a p'ort21and'the bypass'pipe 20 is' connected to the other end of the unit and receives the water flowing therefrom through Specification of Letters Patent.

How of water on the valves.

a port 22. The unit 19 isconnected to the radiator 13 as by bolts or rivets 23' and the outlet 24 from the body of the unit 19 totheradiator has two ports 25 and 26 which are spaced fromleach other as shown in the drawings and which are also spaced from the port 22 but are arranged parallel thereof the'linit asrat 30, and at its other end it is connected to avalve mechanism 31 comprising a valve 32 and a double valve 33-, the former adapted tov cooperate with the seat ,27 and the latter with the seat 28. The port 26' is slightly larger than'the port 25 so that the valve 32 may pass through it in assembling the parts, and 'for the further purpose of more nearly balancing the pressure or The valve 313 is also adapted to cooperate Patented Jan. 6, 1920. Application filed April 29, 191s. Serial No. 231,5o2.

'65 of the. body of" the thermostat with aseat ,34: surrounding the'port 22 and the 'stemj3'5 of the 1 Valve mechanism is adapted to (slide in an opening 36 formed in a spider 37 in apiece 38 which is secured to' the end of the unit bodyas by bolts 39. The

port 22 and seat 349 are formed in' this iece 38 and the latter forms the end of the odyof the thermostat unit- 7 From the above it will be seen that m the position. shown the -valves ,32 and 33 are closed against their respective seats 27 and 28 so that the ports 25 and 26 are closed.

The valve mechanism is in {this position when the water flowing through the unit 1s" relatively cold and all of the water therefore passes through the port 22 and bypass pIipe 20- and none ofit goes into the radiator.

nder these conditions the pressure of wa-' ter against thevalves 32. and 33 is substantially balanced, due to the fact that It 1s on opposite sides of'said valves, and theslightlysmaller surface of the valve 32 relative to the valve 33' substantiallycompensates for the slight increasev of pressure against said valve 32 due to the direction of flow of water through the unit-body. Thus the water entering the body at the port 21 flows in thedirection of. thearrow 40 and therefore causes slightly more pressure against the valve 32 tending to openthe valve than it does against the back of the valve-3 3 tending to close the latter. 1 Said valve 33, however, being slightly larger-than the va'1ve'32 substantially balances the pressure. By this,

' arrangement the thermostat 29 is very sensitive in its action and as soon as thetemperature of the water is raised slightly the thermostat expandsand opens the ports 25 and 26. The opening of these ports causes some of the water to pass into the. radiator til hit

or scope of the invention.

connected to saidmechanism.

l3 and in case the motorcontinues to raise the temperature of the water all of it that flows through the thermostat unit will pass into the radiator through the outlet 24: due

to the fact that the valve mechanism 31 will be moved suihciently'to open wide both of the ports and 26, and entirely close the port 22.

@ther forms and; modifications of the mechanism shown and described herein may be made without departing from the spirit Having thus described my invention, what ll claim and desire to secure by Letters Pat controlling the outlet ports,

8. A thermostat unit comprising a casing having an inlet opening and three outlet.

ports, valves controlling said'outlet ports,

anda thermostat connected to said valves. l I a. A thermostat unit comprising a casing d a thermostat valve mechanismhaving an inlet opening at one end, an outlet port at the other end, and two intermediate ports, of a thermostat valve mechanism controlling the outlet and intermediate ports.

5. A thermostat unit comprising a casing having an inlet opening at one end, an. outlet port at the other end, and two interme diate ports formingtogether a second outlet,

valves for the outlet ports, and a thermostat connected to said valves. 7

6. A thermostat valve unit comprising a casing having an inlet opening, an outlet opening, and a second outlet opening in its side, said side outlet opening having two ports communicating with the interior of the casing, valves for said outlet openings,

and a thermostat connected to said valves.

7 A thermostat valve unitcomprising a casing having an outlet opening with two ports therefor, valves for said ports, one opening against the flow. of water and one opening with it, and a thermostat connected to said valves. a

' 8. A thermostat valve unit comprising a r casing having several spaced parallel ports,

an expansible. thermostat having one end secured to the body of the unit, a valve mechanism having valves for said ports, said mechanism being secured to the free end of said thermostat, and a guide for said valve mechanism.

9. A thermostat valve unit comprising a casing having several spaced parallel ports,

an expa'nsible thermostat having oneend sew cured to the body of the unit, a valve mechani'sm having valves or said gports; said mechanism being securedto the free end or .saidthermostat, andhaving a guiding stem beyond the valves, and a guide in said unit 'coiiperating with said guiding stem. In testimony whereof lla my signature.

tha a. manna. 

